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the radius of a circle is 15.2 cm. find the length of an arc of the circle intercepted by central angle 3pi/4 radians.

1 Answer

4 votes
The length of an arc is formulated by the formula:
l = r\theta, provided
\theta is in radian form.
Thus, the length can be easily solved by substituting all that you need to know:


l = 15.2((3\pi)/(4))

l = (45.6\pi)/(4)